SECTION l GENERAL INFORMATION SECTION VI RANGE CASE DISASSEMBLY SECTION VII MAIN CASE DISASSEMBLY CASE & SHIFT FORKS EXPLODED DRAWING 22 MAIN CASE OPTILUBE EXPLODED DRAWING 24 MAIN CA
Trang 1Service Manual
9/10 Speed Transmission
PSO150-9A
Trang 29 SPEED TRANSMISSION
This symbol indicates a potentially hazardous
situation If the instructions aren't followed, the result
could be death or serious injury.
This symbol indicates that you must do some thing in
order for the transmission to function properly For
example, you must use only one gasket underneath
the shift tower If it is eliminated, or more than one
gasket is used, binding can occur This would prevent
proper shifting of the transmission and could damage
the unit.
This symbol indicates that you must NOT do
something in order to avoid damaging the
transmission For example, you must not use sealant
underneath the shift tower Using sealant underneath
the tower will prevent proper interlock functioning and
could damage the unit.
SAFETY FIRST
Carefully read this service manual
before beginning any work on your
Spicer transmission.
Throughout this literature, you will see symbols that warn of
potential physical danger or product damage if the
accompanying instructions aren't followed Here are the
symbols and their meanings.
Be sure you understand all procedures and instructions in
this manual before you begin working on your Spicer
Transmission If you have any questions, contact your
Spicer® Transmission representative.
The information in this service manual was current at the time of publication
This information is subject to change at any time without notice
Use a hoist whenever lifting the transmission or shaft assemblies Using a hoist can help prevent
muscle strain or other possible injuries.
Always wear safety glasses when working on the transmissions to help prevent possible eye injury due to small parts (such as snap rings) or metal chips that may fly up unexpectedly during a teardown or rebuild.
Be careful when picking up gears or other sharp components If you aren't careful, you could cut your
hands Consider wearing heavy cloth gloves or covering sharp objects with shop towels before picking them up.
When draining the transmission prior to working
on it, be careful to let the unit cool down first
Otherwise, hot transmission fluid could cause burns.
General Safety Precautions
2 GENERAL INFORMATION
Trang 3SECTION l GENERAL INFORMATION
SECTION VI RANGE CASE DISASSEMBLY
SECTION VII MAIN CASE DISASSEMBLY
CASE & SHIFT FORKS EXPLODED DRAWING 22
MAIN CASE OPTILUBE EXPLODED DRAWING 24 MAIN CASE GEARS EXPLODED DRAWING 25
SECTION VIII COUNTERSHAFT DISASSEMBLY & REASSEMBLY 29
SECTION IX CLEANING & INSPECTION PROCEDURES 30
TABLE OF CONTENTS
3
Trang 4Simple Shift Patterns
Gear Ratio O/D Ratio
8 4
9 5
7 3
Pro-Shift Nine Speeds
Model Weight * Clutch Housing Lube Capacity Overall Length PTO Speed (% of engin)
625-635 lbs Iron SAE 18 pints 28.96”
Trang 5GENERAL INFORMATION
10 SPEED
4B
Trang 6GENERAL INFORMATION
Section I
Wrench Torque(ft Ibs.)TORQUE SPECIFICATIONS FOR NUTS AND CAP SCREWS
Nom Thread Size PART NAME NON-LOCKING TYPE LOCKING TYPE
5
Trang 7How to Shift the Spicer
PSO100-10S,PSO125-10S,
PSO140-10S & PSO150-10S
Transmissions
3 (A) Release the tractor parking brakes and trailer parking
brakes where applicable
(B) Release the clutch pedal gradually to full position
(C) Depress the throttle to start the vehicle moving
4 (A) After attaining optima! speed in 1st gear,
(B) Depress the clutch pedal
(C) Move the gear shift lever to neutral
(See "Double Clutching: Upshifting’)
(D) Then move the gear shift lever to 2nd gear
5 (A) Continue the above procedures through 5th gear position
6 (A) To continue upshifting (6th gear through 10th gear)(B) Preselect high range on the range selector
(C) Depress the clutch pedal
(B) Move the gear shift lever from the 5th gear position
to neutral (See "Double Clutching: Upshifting")(E) Then move the gear shift lever into 6th gear position
8 (A) Continue these procedures for 8th - 10th gear positions
Downshifting
Downshifting is actually just the reverse of upshifting
(see "Double Clutching: Downshifting")
When selecting a starting gear, if you have a butt-tooth condition, gradually release the clutch so the drive gear can rotate to align the gear clutching teeth to complete the shift
Starting Vehicle From a Stop
1 (A) With the gear shift lever in neutral,
(B) Clutch pedal depressed,
(C) And brakes set,
(D) Start the engine Allow it to build to maximum air pressure
2 (A) With the clutch pedal fully depressed to engage the clutch
brake (see "Clutch Brake"),
(B) Position the range selector to low range Move the gear
shift lever into 1st gear position
MODELS:
PS95-9A/PS125-9A/PS140-9A PSO125-9A/PSO140-9A/PSO150-9A
Trang 8How to Shift the Spicer
PSO100-10S,PSO125-10S,
PSO140-10S & PSO150-10S
Transmissions
3 (A) Release the tractor parking brakes and trailer parking
brakes where applicable
(B) Release the clutch pedal gradually to full position
(C) Depress the throttle to start the vehicle moving
4 (A) After attaining optima! speed in 1st gear,
(B) Depress the clutch pedal
(C) Move the gear shift lever to neutral
(See "Double Clutching: Upshifting’)
(D) Then move the gear shift lever to 2nd gear
5 (A) Continue the above procedures through 5th gear position
6 (A) To continue upshifting (6th gear through 10th gear)(B) Preselect high range on the range selector
(C) Depress the clutch pedal
(B) Move the gear shift lever from the 5th gear position
to neutral (See "Double Clutching: Upshifting")(E) Then move the gear shift lever into 6th gear position
8 (A) Continue these procedures for 8th - 10th gear positions
Downshifting
Downshifting is actually just the reverse of upshifting
(see "Double Clutching: Downshifting")
When selecting a starting gear, if you have a butt-tooth condition, gradually release the clutch so the drive gear can rotate to align the gear clutching teeth to complete the shift
Starting Vehicle From a Stop
1 (A) With the gear shift lever in neutral,
(B) Clutch pedal depressed,
(C) And brakes set,
(D) Start the engine Allow it to build to maximum air pressure
2 (A) With the clutch pedal fully depressed to engage the clutch
brake (see "Clutch Brake"),
(B) Position the range selector to low range Move the gear
shift lever into 1st gear position
MODELS:
PS95-9A/PS125-9A/PS140-9A PSO125-9A/PSO140-9A/PSO150-9A
6
6B
Trang 9Double Clutching
Upshifting: The normal double clutching technique is
suggested When you want to shift, depress the clutch and
move the lever to neutral Engage the clutch and allow the
engine RPM to drop so engine speed and driveline speed
match Depress the clutch and move the lever into gear
Engage the clutch and accelerate as conditions permit.
Downshifting: Downshifting is the reverse of upshifting As the
engine approaches the shift point (start the downshift
approximately 50 -100 RPM above the shift point), depress
the clutch and move the lever to neutral Engage the clutch
and raise the engine RPM until the engine and driveline
speeds are equal (normally, governed speed) Depress the
clutch, then shift into the next lower gear Engage the clutch.
Skip Shifting
Experienced drivers sometimes want to skip some of the
ratios This is acceptable However, you should do this only
when operating conditions allow Your speed, the load, and
The road type and condition should be considered.
Double clutch when shifting This will help
components match speed better during shifts and will help ensure proper engagement.
Downshift through all gear speeds when you are slowing down Chassis and trailer brake life can be
increased by doing this.
Do not force the shift since this can cause damage
to clutch collars and clutching teeth Use steady
force on the shift lever to complete shifts.
Do not coast in neutral The vehicle could lose RPM’s
during coasting and you may not be able to shift back into the proper gear.
Do not downshift at road speeds that are too fast
This could prevent proper gear engagement and could damage clutching teeth.
Do not tow vehicles without first pulling the axles
or disconnecting the driveshaft If you tow the
vehicle without doing this, you can damage drive train components because the system lubrication is inadequate when the vehicle is towed.
GENERAL INFORMATION
Section I
MODELS:
PS95-9A/PS125-9A/PS140-9A PSO125-9A/PSO140-9A/PSO150-9A
Reminders
7
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PS 9/10
Trang 10AIR LINE PIPING DIAGRAM
Maintenance
MODELS:
PS95-9A/PS125-9A/PS140-9A PSO125-9A/PSO140-9A/PSO150-9A
8
PS 9/10
Trang 11Use only petroleum-based solvents to clean parts Other types of
solvents could damage filter components and affect proper operation
Blow air through the filter (inside and outside) to dislodge surface
contaminants Otherwise, these contaminants could affect proper filter
operation and lead to equipment damage
Do not disassemble the regulator section (9): it is not field-repairable If
it is damaged, replace it
MAINTENANCE
Section II
MODELS:
PS95-9A/PS125-9A/PS140-9A PSO125-9A/PSO140-9A/PSO150-9A
1 Clean or replace the filter element (7) every 6-12 months, or whenever slow
shifting is encountered The element should be replaced after three cleanings If
regulator malfunction is indicated, replace the entire unit
2 To service the filter section, shut off the air pressure Unscrew the bowl (1) and
remove the O-ring (2) Unscrew the stud (4) Remove the louver (5), upper gasket
(6), element (7),
and lower gasket (8) from the stud Do not disassemble the regulator section (9)
3 After cleaning, inspect the parts carefully Replace any damaged parts
4 Reassemble the unit by first installing the element (7) on the stud (4), so that the
large end of the internal taper (thinnest wall section) is toward the hex on the stud
Torque the stud to 5 - 10 Ibs inch
5 Apply a wipe coat of Dow Corning DC7 Silicone Grease (or equivalent) to the
O-ring (2) seating surfaces on the regulator (9) and bowl (1) Apply a light, even coat
of Molykote "G" (or equivalent) to the bowl threads Torque the bowl to 5 -10 Ibs
inch If the drain valve (3) was removed, reinstall it and torque it to 10-15 Ibs Inch
Trang 12CAUTION: To ensure proper lubrication and
operating temperatures in this unit, the proper
lubricants must be used Correct oil levels must be
maintained Spicer recommends using only lubricants
produced by reputable, well-known suppliers If you want to
use a lubricant not specified below, please contact your local
truck dealer to determine whether the lubricant is suitable for
your purposes.
Recommended Lubricants
The lubricants listed below are recommended for use in all
Spicer mechanical transmissions, auxiliaries, and transfer
cases.
Oil Changes
Many factors influence oil change periods Changes should
be scheduled at three years or 250,000 miles with synthetic
engine oil for normal over-the-highway operations
Off-highway use usually requires an oil change every 1,000
hours The oil level in the transmission should be checked
every 5,000 miles (8,045 km) on-highway, or every 40 hours
in off-highway operation When it is necessary to add oil,
Spicer recommends that types and brands of oil not be
mixed The correct oil level in this transmission is established
by the filler plug opening.
Refill
First, remove all dirt around the filler plug Then refill the transmission with new oil Use the grade recommended for the existing season and prevailing service The lubricant should
be level with the oil fill plug located on the left side of the transmission case.
Overfilling:
CAUTION: Do not overfill the transmission This
usually results in oil breakdown due to excessive heat and aeration from the churning action of the gears Early breakdown of the oil will result in heavy varnish and sludge deposits that plug up oil ports and build up on splines and bearings
MAINTENANCE
Section II
MODELS:
PS95-9A/PS125-9A/PS140-9A PSO125-9A/PSO140-9A/PSO150-9A
All CD 50 Synthetic engine oil meeting MIL-L-2104 D
or MIL-L-46152 B, API-SF or API-CD
Oil Cooler
See standard application requirements.
10
PS 9/10
Trang 13Important Procedure
To locate and correct unit power or auxiliary transmission
troubles, a systematic procedure should be followed.
Road test whenever possible Mechanics usually get second-
or third-hand reports of trouble experienced with the unit
These reports do not always accurately describe the actual
conditions Sometimes symptoms seem to indicate trouble in
the transmission, while actually the problem is with the axle,
driveshaft, universal joints, engine or clutch This is especially
true of noise complaints Therefore, before removing the
transmission or related components to locate trouble, road
test to check the possibility of trouble in other closely
associated units Road testing is most effective when the
mechanic drives the vehicle However, riding with the driver
can be very informative.
Check Functioning
Prior to Disassembly
If a remote control is used, a careful check of the remote and
connecting linkages (and their adjustment) must be made
The remote unit must be in good working order if the
transmission is expected to shift satisfactorily.
Many times, the answer to the trouble is apparent when the
unit is inspected prior to disassembly But this evidence is
often lost when the parts are separated If possible, check the
unit prior to disassembly Bear in mind that a careful
inspection of the unit should be made as each disassembly
step is performed.
Inspect Thoroughly During Disassembly
It is poor practice to disassemble a unit or the complete transmission as quickly as possible without examining the parts The mechanic may completely disassemble a unit and fail to find the cause of the trouble, unless he examines the parts After the transmission is disassembled, check the lubricant for foreign particles This is a source of trouble often overlooked during the disassembly.
Repair or Replace Worn Parts
Many times the parts or critical adjustments causing the trouble are not replaced or corrected because the mechanic only inspects and replaces parts that have failed completely All pieces should be carefully examined because broken parts are often just the result not the cause of the problem All parts that are broken or worn and no longer meet specifications should be replaced
Also, parts that are worn to the extent that they do not have a long service life remaining should be replaced Replacing these parts now will avoid another teardown on the unit in the near future Also at this time, make the recommended changes or modifications to bring the transmission up to date and increase the service life of the unit.
GENERAL DISASSEMBLY
Section III
MODELS:
PS95-9A/PS125-9A/PS140-9A PSO125-9A/PSO140-9A/PSO150-9A
11
tech line 800-401-9866 www.ttcautomotive.com
8
PS 9/10
Trang 14Rebuild Facilities
A suitable holding fixture or overhaul stand with a hole for the input
shaft is desirable
For easier working conditions, table height should be 28 - 30
inches A light chain hoist should be used to handle the mainshaft
and countershafts during removal and reassembly procedures
Cleanliness
Transmissions should be steam cleaned prior to disassembly Seal
all openings before steam cleaning to prevent entry of dirt and
water which can damage serviceable parts
Dirt is abrasive and will cause premature wear of bearings and
other parts Spicer suggests that mechanics have a wash tank
available to clean parts just prior to reassembly
Bearings
When a transmission is removed at relatively low mileage, bearings
should be removed with pullers designed for this purpose Wrap the
bearings to keep out dirt Clean, inspect, and lubricate all bearings
just prior to reassembly If accumulated mileage is over 150,000
miles, we suggest that all bearings be replaced If bearings are
worn or damaged, always replace them regardless of mileage
Read this section before starting the
detailed disassembly procedures Follow
procedures closely to ensure proper
Serious damage can be done internally to bearings, thrust faces and washers by hammering on external parts In most designs, when the yoke/flange locknuts are tightened and secure, the internal bearings and gears are in proper location When the yoke/flange is driven on the shaft, however, two conditions can exist
(A) If the bearing fit is tight on the shaft, usually the bearings will brinell as they must absorb the pounding force
(B) If the bearing fit is loose, the shaft will keep moving inward until it
is stopped by the internal parts such as the pilot bearing thrust washers
These conditions must be prevented
Power Take-Offs
Refer to your owner's manual, installation procedures, and safety precaution when installing any PTO on your transmission
When installing the front bearing retainer and seal in
the transmission, use the red plastic sleeve to prevent
serious damage to the oil seal Failure to use the seal sleeve
will void the seal warranty
GENERAL DISASSEMBLY
Section III
Front Bearing Retainer & Seal
Hydrodynamic Lip Seal must be installed so that Hydrodynamic Lip faces toward inside of transmission.
Remove seal cardboard shipping tube or plastic installation sleeve just prior installing bearing cap assembly to transmission
Push sleeve over end of shaft install bearing cap assembly
After red sleeve is in place install seal dry
MODELS:
PS95-9A/PS125-9A/PS140-9A PSO125-9A/PSO140-9A/PSO150-9A
12
PS 9/10
Trang 15SHIFT TOWER DISASSEMBLY
Section IV
1 Cut the tie-down straps and lift the boot off the lever.
2 Holding the lever in a vise, Remove the tower snap ring.
3 Pull the lever, the upper and lower plastic sockets, and the
two opposing springs from the tower.
MODELS:
PS95-9A/PS125-9A/PS140-9A PSO125-9A/PSO140-9A/PSO150-9A
13
tech line 800-401-9866 www.ttcautomotive.com
PS 9/10
Trang 16REMOTE CONTROL DISASSEMBLY
Section V
1 Remove the six bolts Separate the remote
control from the Transmission.
2 Disconnect the tie rod from the housing and the
selection lever.
3 Disconnect the selection lever from the outer
shift lever.
4 Remove the bolts from the outer shift lever Tap
the lever off the shift rod.
5 Cut the tie straps from the boot and remove it.
6 Remove the shift finger bolts and tap the finger off the rod.
7 Pull the rod from the housing.
8 To d i s a s s e m b l e t h e s e l e c t i o n l e v e r subassembly, first remove the snap ring and retainer plate.
9 The bearing race, ball stud, and a final bearing race are removed next.
10 Remove the two springs and the boot.
MODELS:
PS95-9A/PS125-9A/PS140-9A PSO125-9A/PSO140-9A/PSO150-9A
14
PS 9/10
Trang 17RANGE CASE DISASSEMBLY
Section VI
Range Case Exploded Drawing
MODELS:
PS95-9A/PS125-9A/PS140-9A PSO125-9A/PSO140-9A/PSO150-9A
15
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PS 9/10
Trang 18RANGE CASE DISASSEMBLY
Section VI
Range Gears Exploded Drawing
MODELS:
PS95-9A/PS125-9A/PS140-9A PSO125-9A/PSO140-9A/PSO150-9A
16
PS 9/10
Trang 191 Begin the teardown by setting the transmission on a bench
Remove the shift tower and air lines
2 To remove an air line from a fitting like the one shown here, push the bushing in with a small screwdriver or your fingernail and pull the tubing
5 Remove the backup light switch and pin
3 Remove the interlock plate, retainer and gasket Also remove the
three springs and poppet balls
4 Next remove the air control valve and gasket, the air lines, and the three interlock pins
RANGE CASE DISASSEMBLY
Section VI
MODELS:
PS95-9A/PS125-9A/PS140-9A PSO125-9A/PSO140-9A/PSO150-9A
17
tech line 800-401-9866 www.ttcautomotive.com
PS 9/10
Trang 206 Remove the two clutch housing bolts from the case Also remove
all but four clutch housing-to-case bolts
7 Stand the transmission on end on a workbench that
contains a hole for the drive gear Lift the transmission with a
11 Remove the output bearing cap and shims
18
PS 9/10
Trang 2112 Remove the range case bolts Using pry bars in the milled slots
will make case removal easier
13 Use a chain hoist to lift the range case from the unit
14 The output shaft and low range gear will remain with the range
case Remove the range synchronizer and fork assembly
15 Be aware that separating the synchronizer will suddenly release the springs Always wear safety glasses to protect your eyes when servicing transmissions Synchronizer replacement parts may
be purchased separately
RANGE CASE DISASSEMBLY
Section VI
16 Remove retaining bolt and washer, next remove the
synchronizer cup and high range clutch gear
MODELS:
PS95-9A/PS125-9A/PS140-9A PSO125-9A/PSO140-9A/PSO150-9A
19
tech line 800-401-9866 www.ttcautomotive.com
PS 9/10
Trang 2218 Remove shift bar support bracket.
19 Simultaneously lift both countershafts straight up to
remove them Now remove the mainshaft reverse gear and rear
thrust plate together
20 Remove the retaining bolt and washer then remove the countershaft reverse gears
RANGE CASE DISASSEMBLY
Section VI
17 Lift high range gear from the case
21 Remove the oil pump housing screws, next remove oil pump
assembly
MODELS:
PS95-9A/PS125-9A/PS140-9A PSO125-9A/PSO140-9A/PSO150-9A
20
PS 9/10
Trang 2322 Remove the left countershaft retaining bolts and retaining
plates Also remove the oil passage bypass valve
23 Next remove the right countershaft rear bearing retainer plates and shims
25 Remove the output shaft bearings from the case Wearing
A safety glasses, press the inner bearing from the shaft
26 These bearings and spacers are a matched set If it is
necessary to replace any of the components, the whole set must be
replaced Replace them as a set to help ensure proper end play
GEARS & RELATED PARTS
Section VI
MODELS:
PS95-9A/PS125-9A/PS140-9A PSO125-9A/PSO140-9A/PSO150-9A
24 Remove the output shaft from the case
21
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PS 9/10